PLEASE HELP A figure skater can increase her angular velocity by pulling in her arms, effectively reducing her moment of inertia. Suppose a skater with an initial moment of inertia of 1 kg m^2 rotating at 2π rad/s performs this maneuver increasing her angular velocity to 4n rad/s over 2 sec. Find:

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?